He was not completely clueless about her situation. She might not say it, but he could tell what she was going through.
He was also not a complete monster to kick her when she was already down. At this moment, she needed him. And the only right thing to do was to be there for her.
"Ok! I guessed I should come out clean and tell them everything." He heard her say, but he doubted that was what she wanted, at least for now.
Why would she agree to stay with him instead of going home with her parents? Because she would like to avoid the confrontation while she was still in this condition.
That was his conclusion. After all, he had known his fiancée for years since they had been friends and lovers. He could already read her telltale signs if she felt happy, sad, excited, or anxious.
"Do you have to?" Suddenly, Dale found himself asking. "What I mean to say is that we do you want to tell them now about our situation." He clarified.